The Research on Smart Drill-In Fluid Design

Abstract:

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There are continuous high concerns on formation protection technology in international petroleum engineering field. The reservoir drill-in fluid (RDF) is the first non-native fluid to contact formation, and which influences directly the ultimate capacity of oil and gas well. The paper discusses the smart RDF design method based on conventional drilling fluid. The designed RDF system is characterized as good formation damage control, as well as the performance easily adjusted for field application. The technology combines ideal packing technology with active calcium carbonate to obtain low permeability filter cake, high return permeability and low initial flowing pressure. The sized calcium carbonates contribute to develop sealing zone for preventing filtrate and solids from invading into formation, and the organophilic passageway in filter cake (the active calcium carbonate) is favorable to open automatically passageway for oil and gas during production. Different modifiers used to ground calciumcarbonate surface modification are evaluated in laboratory. And the laboratory results show modified calcium carbonates are comfortable with conventional drilling fluids additives such as XC(Xanthan ), potassium polyacrylate(K-PAM), sodium carboxymethyl cellulose(Na-CMC).

Info:

Periodical:

Advanced Materials Research (Volumes 146-147)

Edited by:

Sihai Jiao, Zhengyi Jiang and Jinglong Bu

Pages:

1075-1079

DOI:

10.4028/www.scientific.net/AMR.146-147.1075

Citation:

Z. Y. Li et al., "The Research on Smart Drill-In Fluid Design", Advanced Materials Research, Vols. 146-147, pp. 1075-1079, 2011

Online since:

October 2010

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Price:

$35.00

[1] Abrams,A.: Mud Design to Minimize Rock Impairment Due to Particle Invasion, JPT , 1977(May), 586-592.

DOI: 10.2118/5713-pa

[2] Dick, M.A., Heinz, T.J., Svovoda, C.F., and Aston, M.: Optimizing the Selection of Bridging Particles for Reservoir Drill-in Fluids, paper SPE 58793, presented at the 2000 SPE International Symposium on Formation Damage, Lafayette, Feb 23-24, (2000).

DOI: 10.2118/58793-ms

[3] Li Zhiyong, Yan Jienian et. al: A New Method for Optimized Design of Temporary Blocking Agent Used for Formation Protection inSouth Shallow Water Area of Dagang Oilfield,. Journal of Oil & Gas Technology, 2007, 29(3), 299-301(in Chinese).

[4] Kaeuffer M. Determination de l' optiumum de remplissage granulometrique et quelques proprieties s'yrattachant. Congres International de I'A.F.T.P.V. Rouen, (oct), 1-12.

[5] Yan J.N. Technology of Drilling fluids. [M] Shandong: Petroleum University Press, 2001, 392-394 (in Chinese).

[6] WU W, LU S C. Mechano-chemical surface modification of calcium carbonate particles by polymer grafting [J]. Powder Technology, 2003, 137: 41-48.

DOI: 10.1016/j.powtec.2003.08.029

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